CN202655737U - Tool for machining inner gear - Google Patents
Tool for machining inner gear Download PDFInfo
- Publication number
- CN202655737U CN202655737U CN 201220230600 CN201220230600U CN202655737U CN 202655737 U CN202655737 U CN 202655737U CN 201220230600 CN201220230600 CN 201220230600 CN 201220230600 U CN201220230600 U CN 201220230600U CN 202655737 U CN202655737 U CN 202655737U
- Authority
- CN
- China
- Prior art keywords
- involute spline
- machining
- spline broach
- broach
- tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model discloses a tool for machining an inner gear. The tool is an involute spline broach, wherein a front handle part (1), a neck part (2), a transition cone part (3), a front guiding part (4), a cutting part (5), a correcting part (6) and a rear guiding part (7) are sequentially arranged on the broach from front to back; the tail part of the broach also comprises a rear handle part (8); the modulus of the involute spline broach is 0.15-16; the number of teeth of the involute spline broach is 21-39; and the pressure angle of the involute spline broach is 23-31 degrees. According to the tool for machining the inner gear, the involute spline broach is adopted to machine the inner gear, and the parameters of the involute spline broach are optimized, so that the involute spline broach can realize better machining effect. The machining precision of the tool for machining the inner gear is superior to that of a common method, the machining efficiency is increased by 27 percent, compared with that of the prior art, one-step forming is realized, and the machining cost is greatly reduced.
Description
Technical field
The utility model relates to a kind of cutter of machining interal.
Background technology
Processing is used for vehicle transmission part internal gear in the prior art, generally all adopts lathe processing, and the Product Precision that utilizes this processing method to obtain is low, and surface roughness is difficult to reach requirement, and inefficiency, and cost is higher.
So, need a kind of device of machining interal to address the above problem.
The utility model content
Goal of the invention: the purpose of this utility model is for the existing deficiency of the machining interal of prior art, and a kind of cutter of machining interal is provided.
Technical scheme: for achieving the above object, the utility model can adopt following technical scheme:
A kind of cutter of machining interal, described cutter is involute spline broach, described involute spline broach is disposed with front shank, neck, transition tapering, front pilot, cutting portion, calibration section and rear pilot from front to back, the afterbody of described broaching tool also comprises rear shank, the modulus of described involute spline broach is 0.15-16, the number of teeth of described involute spline broach is 21-39, and the pressure angle of described involute spline broach is the 23-31 degree.
Beneficial effect: the cutter of machining interal of the present utility model, by adopting the involute spline broach machining interal, and the parameter of involute spline broach is optimized, can reach better processing effect.The tool sharpening precision of machining interal of the present utility model is better than conventional method, and the relative prior art of working (machining) efficiency improves percent 27, one-shot forming, and processing cost reduces greatly.
Description of drawings
Fig. 1 is the structural representation of the cutter of machining interal of the present utility model;
Fig. 2 is the cross section of cutting portion of the cutter of machining interal of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment only is used for explanation the utility model and is not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
See also shown in Figure 1, the cutter of machining interal of the present utility model, cutter is involute spline broach, wherein involute spline broach is disposed with front shank 1, neck 2, transition tapering 3, front pilot 4, cutting portion 5, calibration section 6 and rear pilot 7 from front to back, and the afterbody of broaching tool also comprises rear shank 8.Front shank 1 is connected with lathe, transmits motion and pulling force; Neck 2 is head and transition cone coupling part, also is the place of marking; 3 guiding function in transition tapering make broaching tool enter easily the pre-manufactured hole of workpiece; Cutting portion 5 reposefully, does not occur on the skew to be transitioned in front pilot 4 guiding broaching tools; Cutting portion 5 is served as the excision work of whole allowance; 6 smoothings of calibration section, calibration function are to improve machining accuracy and the surface quality of internal gear.Rear pilot 7 is used for keeping the tram of the last several cutters tooth of broaching tool, prevents broaching tool when being about to leave workpiece, damages machined surface quality and cutter tooth because workpiece is sagging; When weighing when broaching tool length, rear shank 8 can with the afterbody of carriage rest broaching tool, prevent that pulling force is sagging because of deadweight.Wherein the modulus of involute spline broach is 0.15-16, and the number of teeth is 21-39, and pressure angle is the 23-31 degree.Preferably, the modulus of involute spline broach is 12-14, and the number of teeth is 22-24, and pressure angle is the 29-30 degree.Front pilot 4 and the cutting portion 5 of involute spline broach are provided with guiding gutter, and the entrance of guiding gutter is arranged on transition tapering 3, and the outlet of guiding gutter is arranged on the middle part of cutting portion 5.
The cutter of machining interal of the present utility model by adopting the involute spline broach machining interal, and is optimized the parameter of involute spline broach, can reach better processing effect.The tool sharpening precision of machining interal of the present utility model is better than conventional method, and the relative prior art of working (machining) efficiency improves percent 27, one-shot forming, and processing cost reduces greatly.
Claims (3)
1. the cutter of a machining interal, described cutter is involute spline broach, described involute spline broach is disposed with front shank (1), neck (2), transition tapering (3), front pilot (4), cutting portion (5), calibration section (6) and rear pilot (7) from front to back, it is characterized in that, the afterbody of described involute spline broach also comprises rear shank (8), the modulus of described involute spline broach is 0.15-16, the number of teeth of described involute spline broach is 21-39, and the pressure angle of described involute spline broach is the 23-31 degree.
2. the cutter of machining interal as claimed in claim 1 is characterized in that, the modulus of described involute spline broach is 12-14, and the number of teeth of described involute spline broach is 22-24, and the pressure angle of described involute spline broach is the 29-30 degree.
3. the cutter of machining interal as claimed in claim 2 is characterized in that, front pilot and the cutting portion of described broaching tool are provided with guiding gutter, and the entrance of described guiding gutter is arranged on described transition tapering, and the outlet of described guiding gutter is arranged on the middle part of described cutting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220230600 CN202655737U (en) | 2012-05-22 | 2012-05-22 | Tool for machining inner gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220230600 CN202655737U (en) | 2012-05-22 | 2012-05-22 | Tool for machining inner gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202655737U true CN202655737U (en) | 2013-01-09 |
Family
ID=47450670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220230600 Expired - Fee Related CN202655737U (en) | 2012-05-22 | 2012-05-22 | Tool for machining inner gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202655737U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817375A (en) * | 2014-03-10 | 2014-05-28 | 江苏上汽汽车同步器厂 | Unilateral broaching involute internal spline deburring broach |
-
2012
- 2012-05-22 CN CN 201220230600 patent/CN202655737U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817375A (en) * | 2014-03-10 | 2014-05-28 | 江苏上汽汽车同步器厂 | Unilateral broaching involute internal spline deburring broach |
| CN103817375B (en) * | 2014-03-10 | 2016-05-25 | 江苏上汽汽车同步器厂 | One-sided broaching involute inner spline unhairing broaching tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20150522 |
|
| EXPY | Termination of patent right or utility model |